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  1. <?php
  2. $input = trim(fgets(STDIN));
  3. for ($i = 2; $i <= $input; $i++) {
  4. 	$isPrime = 0;
  5.  
  6.     for ($j = 1; $j <= $i; $j++) {
  7.         $res = $i % $j;
  8.  
  9.         $isPrime++;
  10.         if ($isPrime == 2) {
  11.             echo $i;
  12.  
  13.         }
  14.     }
  15. }
Success #stdin #stdout 0.02s 25500KB
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https://ideone.com/zWHKqq
language:
PHP (php 7.3.5)
created:
2 years ago
visibility:
public

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